//
//  UIColor+TYExtendsion.m
//  TYToolKit
//
//  Created by dev_tianyu on 16/8/6.
//  Copyright © 2016年 dev_tianyu. All rights reserved.
//

#import "UIColor+TYExtendsion.h"

@implementation UIColor (TYExtendsion)

/**
 *  随机色方法
 */
+ (UIColor *)randomColor
{
    CGFloat r = arc4random_uniform(256) / 255.0;
    CGFloat g = arc4random_uniform(256) / 255.0;
    CGFloat b = arc4random_uniform(256) / 255.0;
    return [UIColor colorWithRed:r green:g blue:b alpha:1];
}

/**
 *  浅色系颜色随机色
 */
+ (UIColor *)randomLightColor{
    CGFloat r = (arc4random_uniform(100) + 150) / 255.0;
    CGFloat g = (arc4random_uniform(100) + 150) / 255.0;
    CGFloat b = (arc4random_uniform(100) + 150)/ 255.0;
    return [UIColor colorWithRed:r green:g blue:b alpha:1];
}

/**
 *  十六进制颜色字符串转UIColor
 */
+ (UIColor *)colorFromHexString:(NSString *)hexColorString
{
    NSString *cString = [[hexColorString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
    // String should be 6 or 8 characters
    if ([cString length] < 6) {
        return [UIColor clearColor];
    }
    // strip 0X if it appears
    if ([cString hasPrefix:@"0X"])
        cString = [cString substringFromIndex:2];
    if ([cString hasPrefix:@"#"])
        cString = [cString substringFromIndex:1];
    if ([cString length] != 6)
        return [UIColor clearColor];
    // Separate into r, g, b substrings
    NSRange range;
    range.location = 0;
    range.length = 2;
    //r
    NSString *rString = [cString substringWithRange:range];
    //g
    range.location = 2;
    NSString *gString = [cString substringWithRange:range];
    //b
    range.location = 4;
    NSString *bString = [cString substringWithRange:range];
    // Scan values
    unsigned int r, g, b;
    [[NSScanner scannerWithString:rString] scanHexInt:&r];
    [[NSScanner scannerWithString:gString] scanHexInt:&g];
    [[NSScanner scannerWithString:bString] scanHexInt:&b];
    return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:1.0f];
}


@end
